Machine for operating upon soles



Marcus, 1928. 1 1,661,319

F. E. BERTRAND MACHINE FOR OPERATING UPON SOLES Filed April 21 1920 2 Sheets-Sheet l Fi y. 1

March 6, 1928.

F. E. BERTRAND MACHINE FOR OPERATING UPON SOLES Filed April 1 9 2 Sheets-Shae 2 Patented 'Mar. 6, I

rnnnnnio E. BERTRAND, OF LYNN, MASSACHUSETTS, AssIGNoR 'ro um'rnnsnon v MACHINERY CORPORATION; OF PATERSON, NEW JERSEY; A CORPORATION OF NEW JERSEY.

. MACHINE non ornim'r me'uroiv SOLES.

Application filed'April 21, 1920. i Serial No. 375,600.

This invention relates tomachines for use in the manufacture ofshoesgand is herein illustrated as embodiedm a machine for are )arin the toe ortions of solesfor sew-' 5 ing operations. p

In making shoes with narrow or peaked toes. considerable difiiculty ise'xperienced in sewing together the sole and upper at the toe of the shoe. This is on account of the side-by-side relationship of 'the' channel guide and the feed point in the sewing ma} chine, the sharp curvature'of the channel at the extreme point of apeaked-toe sole and thercsulting narrowness of the'space be: tween the converging outer edges of the channel. These conditions combine to prevent the channel guide and the feed point from following the root of the .channel dur.- ing the process of sewing around the toe of the shoe. As a result the channel flap is mutilated and the between substancemay be injured.- l urthermore as the shoe isswung abruptly to effect the rounding of the toe, the raised portion of thes'ole between the converging inner edges of the channel wipes across the under side of'the channel guide. This tends to force the sole downwardly with respect'to the channel guide'and thus sub-' jectthe channel flap and the between sub- 30 become weakened to such an extent that the stitches will not hold properly. The seam is then liable to rip before the completionof the shoe. The downward pressureupon the to which the upper is;to be sewed so as to cause the needle to penetrate the rib in a higher plane aroundthe toe than-around the margin at the base ofthe rib, a condition which detracts from the appearance of the finished shoe.

Oneof the objects of the presentinvention is to provide a machine for preparing soles having peaked toes insuch a manner as to I insure freedom of relative movement between the channel guide and the solefWhen op-- stance to additional strain, so that they may sole also tends to depress. the marginal rib.

crating at the toe during a sole sewingop-.

eration.

With this objectiniview; a feature of the invention consists in the provision of means for removing material from a.v sole between the converging sides of the channel at the toe withoutinjuring the channel flap, and means tO IJOSIlJiOII asole to be operatedupon thereby; Itis preferred to employ for the, .l

purpose off removing the sole material a cutting tool in the nature of a' twist'drill which is disposed with its axis'norma-l t0 the plane of the bottom of'the channel andis arranged to rotate continuously during the operation of the machine... The tooloperates; to enlarge thechann'el at the toe so as to'provide additional clearance space 'for the chan-- ml guide and. the feed pointof the-sewing;

machine as theshoe is swung v ing the operation of sewing around the. we.

abruptly dur- Associated with the cutting tool is a tubular while" sewing aroundthe toe of tlieshoel ranged to rotate continuously about. anaxis normal toqtheqplane of the bottom of the channel in the sole" and isprovided with one or morelateral' axially. disposed ribs,

turning tool for turning back the channel v flap to open the channel at the toeof the sole' to prevent mutilation of the channel flap and weakening of the between-substance- ,The tubular .turning tool is preferably 'ar which are adapted to engage the inner side of the channel flap, as" the tool rotates and to raise thev flap to an upright.positionby a series of rapidly delivered hammer-like "blows. i

In order that the clearance cutting; operatlon occurwh1le the channel flap is being turned, without interfering with the operation of the flap turning tool, a further. feature of, the invention consists inthe mountingof the cutting tool for atrial movement within the tubular flap-turning tool and the provision of means the sole-engaging end of the will of the operator.

for normally latter at the Figure 1 is a view in side elevation, partly broken away, of the head oi a machine constructed in accordance with the' pre'sent 1n? 7 vention; Fig. 2 is a fragmentary sectional view'o'f a turn sole, the plane of the SQCtlOlT extending longitudinally through the toe ot the soleg'Fiigi 8 is a longitudinal sectional View showing the'to-e portion ota turn sole which "has been lasted and subjected to the flap-turning and clearance-cutting operations preparatory to the turn sewing operation;' t is fragmentary plan View show ng the channelled 'tace of a turn sole' which has been subjected to'the flap turning and'folea'rance cutting operations; Fig. 5 is a top plan View ofthe head of the machine shown .in Fig. 1; Fig. 6 is a sectional View,

taken on the line 66 of Fig. '5. showing the cuttlng tool in lts retracted or noperative position; Fig. 7 is an enlarged sectional View, taken on the line 77 of Fig. 51, 110;- ing thebper'ative position of the cutting tool; and Fig. 8 is a bottom plan View of the 'fiapturning and clearance cutting tools.

' In the illustrated embodiment of the invention the flap-turning tool is indicated at 10 and the clearance-cutting tool' at 12. The

tools'10 and 12 are mounted. for coaxial rotation 1n suitable hear ngs in a forwardly projectingportion ot-a head 14 which is supported by means of astandard 16. A

wedge-block 18, which is interposed between" the head 14 and the standard '16'se'1 ves to tilt the head rearwardly at suchan angle that when the sole of the shoeis presentcd to the tools of the n'iachine in a horizontal position, as ind cated-at in Fig. 1, the common axis of the tools w ll be normal to.

theplane of the bottom of the inclined 'chan; nel in the turn sole.

'.The flap-turning or channel-opening tool 10 comprises a hollow shaft or tube, the cen tral portion of which is journaled in a hearing 22, that is formed in the head 1&. 7 Projecting from diametricallyopposite sides 01% the lower exposed and slightly reduced end ofjthe tool 10 are a pair of ribs 2 1" (see Fig.

'8) for engaging and assisting in turning up the channel fiap; As best shown in Fig; 7 the tool 10 is held against longitudinal movement'in the bearing22bya tool-carrier 26 which is rigidly secured to' the upper end of the tool, above the bearing and-by a col lar 28 which is secured to the tool below the hearing. The tool 10 is rotated by means of a groovedpulley 30 having an upwardly extending trunnion 32 which is journaled in a bearing 34 in the head 1 1 above and coaxial with the bearing 22. The pulley 30 is connected to drive the tool 10 by means of two depending lugs 36 arranged diametrically opposite each other on the under side of the pulley and received in corresponding notches 38 that are severally formed in the upper endsot a pair charms O rising t'rom the tool-carrier 26; The above described construction permits the pulley 30 and the flapturning tool 10 to be readily assembled in their respective bearings and connected to rotate together. "The'pulley-BO is driven by a belt-42which passesundera pair of idler pulleys 1 1 at the rearot the head l t and is adapted to be connected with any'suitable source of power. As shown, the idler pulleys 1 1- are journaled upon the opposite ends of a horizontal axle 16 which is supported byga pair of brachetslS risingfrom the opposite ends of a supporting rod that is secured in a rearwardprojection of the head 1 1. Each pulley 4.411s confinedon the axle 4 6 betweenone of the brackets e18 and one:

of a pair of. collars 52 which aresecuredxto the opposite ends of the axle. A suitable guard 53 is shown secured to the bearing 22 .in'iFig. 1 to protect the operator from injury througlrcoming in contact with the rotating tool-carrier 26. T y

The clearance-cutting tool 12 comprises an anger-like drill which ground fiat at the point and fits within a connterbored recess in the lower end the tubular, flap-turning tool 10. The sides of the cutting toolare spirally fluted or groo ed toelevate within the tube-- lar fi21l -tl1lfIll11g tool the chips produced by the cutting operation.

The chips are dis charged through a pair of longitudinal slots 5ft which are't'ormed in ogpositejsides oi the lower portion of the flap-turning tool: The chips are thus prevented from accumulating in the channel \vl iel' tl f mightinterfere with the laying of the, channel ilap after the sewing operation has beenco'mp'let-- ed? The cutting 'tool 12 is" form-ed at the lower end' of a spindle 56, the diameter of which is slightly less than that of the opera--- tive part of the tool. The spindle 56 is join naled Within the tubular flapturningtool andwithin anaxialbearin g ill the pulley 30 The upper end of thespindle 56 "proects above the prilley and rigidly secured thereto is a rotatable carrier-block 58 which sustains the weight ofthe cutting tool'and ing'i'rom the carrier block, on opposite. sides I flthaspindle '56 which are severally 'received in notches 62 in the top of the trunnion 32 of the pulley 30. These cooperating lugs and notches are arranged to permit longitudinal movement of the spindle 56 and cutting tool 12 relatively to the flap-turning tool 10 for the purpose of projecting and retracting the cutting tool.

The means for imparting longitudinal movement to the cutting tool 12 comprises an arm 64 which is mounted for a limited amount of vertical swinging movement above the head 14 and which is provided at its forward end with a recess 66 in which they carrier-block 58 is supported. The rear ex- I tremity of the arm 64 is forked to'embrace the rearwardly projecting portion of the head 14 and is pivoted on the rod 50 between the brackets 48. The arm .64 is connected with the carrier-block 58 by means of a pair of studs 68 which are screw-threaded into the forward end of the arm 64 on opposite sides of the recess .66, the studs having inwardly projecting ends which enter an annular groove 70 in the carrier-block 58.

The cutting tool is normally maintained in retracted or inoperative position by means of a coiled spring 72- (Fig. 1) one end of which is seated in a recess 74 nearthe forward end of the arm 64, the opposite end of the spring bears against the top of the head 14. The forceofthe spring 72 tends to swing the arm 64 upward and hold the cutting tool retracted. A rod 76" connects. the arm 64 with a suitable foot treadle (not shown) by means of which the arm may be depressed to project the cutting tool into working position (see Fig. 7). The upward movement of the arm 64 and the cutting tool 12 is limited by the engagement of a collar 78, which is secured to the rod '76, with a ledge; 80 on the head 14. The extent of downward movement of thearm 64 and the cutting tool 12 is determined by means ofa stop-screw 82 which projects downwardly through the recess 74 and through the coils of the spring 7 2 and is adapted toengagethe adjacent portion of the head 14. By'rot-ating the screw 82 the amount which the cutting tool is permitted to project beyond the flap-turning tool may be adjusted for the purpose of varying the amount of material removed from the soleby the cutting operation. A lock nut 84 is provided for securing the stop-screw 82 in adjusted position;

During the cutting operation the upward.

thrust of the cutting tool is received, by a bolt 86 which is screw-threaded into thearm 64 and projects into the recess 66 in axial alinement with the spindle 56. The bolt 86 may be adjusted to compensate for wear on the cutting tool and is adapted to be secured in adjusted position by a lock nut 88.

In order that the sole stock may be cut away at the proper place, a gage 92 (Fig. 1) is provided. to assist in locating the toe ofthe sole in line with the tools of the machine. The gage 92 is adjustably secured to the forwardly projecting portion of the head 14 by meansof two bolts 94. Thebolts 94 extend through slots 96 which permit adjustment of the gage toward and from the tool to vary the location of the cut-away portion in ac cordance with the size or style of the shoe.

Theshoe is then manipulated to cause the flap-turning tool to enter the channel on the side toward the gage 92 at a point about one inch to therear of the toe end of the channel. The shoe is then moved in a direction to cause the channel flap to be gradually turned backuntil the point of the toe'is reached. The flap-turning tool rotates in a clockwise direction, viewed from above, and Y. 3 thejribs 24 are brought 1n rapid succession into engagement with the inner face of the channel fiapcausing the flap to be turned intoupright position, as indicated at 98 in Figs. 3 and 4. The beating action of the ribs 24 against the channel flap effectively turns up the flap and sets it in upturned position, so that therewill be no tendency for it to spring back and close the channel when the sole is removed from the machine. When the .shoehas been moved into such a position that the portion of the sole which isto be cut awayis directly beneath the cutting tool, the operator swingsthe shoe so that the rounded portion of the upper adjacent to the sole edge at the extreme point of the toe bears squarely against the gage 92. This determines the exact location of the cutby positioning'the point to be operated upon inline with the cutting tool. The op erator then depresses'the foottreadle thus projecting the cutting tool into operative position. The action of the cutting tool removes the portion of, the bodyfof thesole between the channel cuts at the point of the toe. The portion of the sole which. is thus removed by the cutting tool is indicated by dotted lines at 100 in Fig. 3. The cutting operation enlarges the channel at the toe end of the sole, asshown clearly in Fig. 3, so as to provide clearance space for the channel guide during the operation of sewing around the toe in the'turn sewing machine. After this portion of the sole stockhas been cut away bvthe cutting tool, the operator releases the foot treadle causing the cut-. ting' tool. to be immediately.retracted by the spring 72 into inoperative position. The shoe is then manipulatedrelatively to the flap-turning tool'so that aportion of the channel flap is turned up atthe opposite side of the toe portion of the sole, and the.

shoe is then removed from the machine. .At the completion of the operation upon the sole, the sole is prepared as illustrated in Figs. 3 and 4, which indicate clearly the appearance of the up-turned channel-flap and show the result of the cutting operation which provides the necessary clearance space for the channel guide.

By supporting the sole operating tools at the angle indicated in Fig. 1, the sole of the shoe may be always held in a substantially horizontal position, which is most convenient for the operator, and. furthermore permits the operator readily to observe the point of operation of the tools. The inclined cutting face of the clearance cutting tool tends to minimize the extent 'tonwhich the sole is cut away and therefore prevents undue Weakening' oi? the sole by the clearance-cutting operation. The action of the flap-turning tool is useful in pushing aside pulling-over and lasting tacks which may have been driven too far inwardly, thus preventing them "from constituting obstructions in the path or the channel guide.

While the particulars or" the construction herein set forth are Well suited to one form of the invention, it is'to be understood that these particulars are not es'sentialxsinc'e they may be variously modified Within the skill oi the artisan without departing from the true scope oi. the actual invention as defined by the following claims.

What is claimed as new, is 2- 1. A machine for operating upon the soles of lasted turn shoes just after the first lasting operation, comprising coaxial channel opening and stock removing tools capable of performing their functions simultaneously, and a fixed gage having a smooth flat face against which the operator may press the rounded portion of the upper at the tip of the toe to locate the channel relatively to said tools.

2. In a machine for operating on lasted turn shoes just after the first lasting operation, in combination, a stoelefitting toolpand a gage to engage the rounded portion of the upper at the tip of thetoe of a lasted turn shoe to position the shoe to locate the channel of its sole relatively to said tool.

3. A machine for operating on channeled soles comprising, in combination, means for removing material-from a sole between the converging sides of the channel atthe toe without injuring the channel flap, and means to position a sole to beoperated on thereby.

i. A machine for operating upon soles comprising means for cutting away a por; tion of the sole stock between the converging inner edges of the channel at the point of the toe and means to engage-the channel flap and protectit from the action of-the cutting means. I p

5, A machine for operating upon soles having, in combination, a drill for cutting away a portion of the sole -stock between the channel cuts at the point of the toe, and

a member to engage the channel flap and guard it-tfr'om the aetionwof the drill;

'6. A machine for operating upoh turn soles having, in combination, a housing, a cutting tool, normally retracted within the housing, for removing a portion of the sole stock between the channel cuts at the point of the toe of a sole, means for locatirrg the toe of the sole. in position to be acted upon by said tool, and controllable means for projecting the cutting tool into working position. i

7. A machine soles having, in combinatio'i'i, a rotatable cutting tool for cutting away a portion of the sole stock between the channel cuts at the point of the toe of a sole, said tool having a lateral spiral groove for elevating the chips produced bythe cutting operation, a housing for said tool having al'ateral opening to permit the discharge of the chips, and means for locating the point or the toe of the sole in line with said tool.

8. In a machine for operating upon turn soles, 'means for turning up the channel the 'so'lestock between the channel cut-s at channel-flap and enlarging the channel at the toe of the sole to provide clearance for the channel guide during the operation at sewing around the toe, and a gage rot locating the work relatively to said means.

10. A machine for operating upon turn solesh'a'vi'ng, in combination, means for turn ing up the channel-flap, and. means for cutting away a portion ofthe sole stock between the converging inner edges ot the channel at the point of the toe.

11. A machine for operating upon turn soles having, in coir'i' loihati(in, a tool for turning up the channel-flap, a rotatable cutter tor cutting away a portion of the stock in the body of the sole at the the,

' 12. A machine for operating upon turn soles having, in combination atubular tool for turning up the channel flap at the toe of the sole, and a cutting tool disposed within the flap-turning tool for cutting away ap'ortion of the sole stock at'thetoe.

13; A machine for operating u on turn soles having, in c omb'inatida, a rotatable 0 1 for turningup the channel flap, a rotatable tool for cutting away a portion 7 of the sea stock between the channelcuts "at the point of the toe mounted to rotate jco axially with theflap-turning tool, and meai'rs 'forrotating saidtools. V

14, A machine tar operating upon him for operating upon turn too tra ns is sales i'iariiig, in cenibinatien, means ror num ing up the channel flap at the toe of the sole, a normally inoperative cutting. tool for removing a portion of the stock at the toe of the sole, and controllable means for rendering the cutting tool operative.

15. A machine for operating upon turn soles having, in combination, a tubular tool for turning up the channel flap at the toe of the sole, a cutting tool normally retracted within the flap-turning tool for cutting away for normally holding the latter tool nested within the former, and means for projecting the latter tool into working position at the will of the operator.

17. A machine for operating upon turn soles having, in combination, a tubularrotatable tool for turning up the channel flap at the toe of the sole, a rotatable cutting tool coaxially disposed and normally retracted within the flap-turning tool for cutting away a portion of the stock at the toe of the sole to provide clearance for the channel guide during the turn sewing operation, means for rotating the tools, and means for projecting the cutting tool into working position. 18. A machine for operating upon turn soles having, in combination, a tubular rotatable tool for turning up the channel flap at the toe of the sole, a rotatable cutting'tool coaxially disposed and normally retracted within 7 the flap-turning tool for cutting away a portion of the stock at the toe of the sole to provide clearance for the channel guide during the turn sewing operation, meansfor rotating the tools, and means for adjusting the amount of projection of the cutting tool to vary the amount of stock removed fromthe sole by the cutting operation. V

19. A machine for operating upon turn soles having, in combination, a frame, .a tubular rotatable tool journaled in the frame for turning up the channel flap at the toe of the sole, a normally retracted rotatable cutting tool coaxially arranged within the,

flap-turning tool and adapted for longitudinal movement relatively to the latter, controllable means comprising an arm pivoted to the frame and operativelyconnected with the cutting tool for imparting longitudinal movement to the latter to project it into working position, and a spring for return:

, mutilation thereof by the cutter.

ing the cutting tool to retracted position.

prising,'in combination, a plurality of coaxial stock-fitting tools adapted to perform their respective functions simultaneously on a shoe, mechanism to rotate said tools. about their common axis,a'nd means 'to move'one of the tools axially to and from operative position, the other of'said tools being constructed andrarranged to remain constantly in operative position.

21. A 'machine for use in making shoe he. machine reroperating on shoes cont comprising, in combination, a rotary tool having a hollow cylindrical portion about its axis and having an opening therethrough intersecting said portion, and a drill mount, ed within said hollow portion to rotate about the same axis and having spiral portions to elevate waste material and eject it through said opening.

22. A machine for use in making shoes comprising, in combination, a continuouslyoperating stock-fitting tool having a hollow portion, a. second stock-fitting'tool in said hollow portion, said tools being adapted to 7 perform their respective stock-fitting opera- I tions simultaneously, and manually-controlled meansto move said second tool to and from operative position during the operation of said first tool so that the first tool may be operated alone-or. both tools simultaneously at the will of the operator.

23. A macliine for use in making shoes comprising, in combination, a perforated rotatable hollow member and a stock-removing tool within said member and arranged to eject waste stock through the perforation therein and to rotate about the same axis, and manually-controlled means to move the tool axially to and from operative position.

24. A machine for use in. making shoes comprising, in combination,a hollow'cylindrical casing, a cylindrical tool mounted within the hollow casing to rotate about its axis, a manually controlled lever for pro- J jecting the tool beyond the casing and for withdrawing it, and a gage adjacent the casing witha guiding surface parallel to said axis.

25. A tool for use in preparing the soles I of pointed shoes for sewing comprising, in

combination, means to push back the channel flap at the toe, and means to remove sole stock from between the converging sides of the channel to provide clearance for the channel guide of the sewing machine. g

26. A tool for operation on the sole of a pointed shoe held in the hand of an operator to prepare it for sewing the sole to the upper, comprising,in combination, a cutter to remove stock between the converging sides of the channel at the toe of the sole of the shoe to provide clearance for the channel guide of the sewing machine, and means engaging the channel flap to prevent 27. In a machine for operating on lasted larging tool Wit-hrespect to the work, said shoes, in combination, means for turning up gage being mounted for adjustmenttowarcl 10 the channel flap at the toe of a shoe, means and from the tool, and means associated for enlarging the channel at the toe While with the gage for maintaining the parallel 5 said flapturning means is operating, a Work relation of its gaging surface With the tool gage having a gaging surface disposed in axis in Various positions of adjustment. parallel relation to the axis of the tool for r determining the location of the channel en- FREDERIC E. BERTRAND. 

